ANALYSIS OF THE IMPACT OF MAXIMUM VEHICLE LOAD AT THE AGE OF FLEXIBLE PAVEMENT (CASE STUDY OF THE ROAD SECTION OF HERA DILI TIMOR-LESTE

The road network is a land transportation infrastructure that plays an important role in the transportation sector, especially for the balance of the distribution of goods and services, both from other regions. In this study, an analysis was conducted to find out how the influence of heavy vehicle volume increase on the service life of the road, while the method used was Bina Marga, the study was conducted by taking a case study on the Hera road section until Dili. This research is expected to find out how the service life of the road if the volume of heavy vehicles continues to increase. If the% of heavy vehicles increase, the thickness of the required surface layer will also be even greater. When% of vehicles or carrying heavy traffic loads are increased, the thickness of the existing layer cannot meet, because the calculation results with% of heavy vehicles increase by 10%, surface thickness 17.2 cm / This will cause the service life of the road to decrease, because it is confirmed that the road will be damaged before the service period ends due to excessive load increase in heavy vehicles.


INTRODUCTION
The highway is a land transportation infrastructure that plays an important role in the transportation sector, especially for the balance of distribution of goods and services, from other regions. Therefore, the important condition for the development and wellbeing of society is a good and useful transportation system. The existence of highways is indispensable to support the pace of economic growth often with the increasing need for transportation means that can launch transportation in Hera, is a regional/arterial road which includes serving a quick traffic between the Distric and small village village.
Based on the background above, the formulation of the problem is as follows: a. How much is the maximum vehicle burden on the perularity of Hera-Dili road segment? b. How is the relationship of percentage value increase in heavy vehicles with age on bending in the road of Hera? c. How is the thick condition of the ethical layer when the percentage value of heavy vehicles increases? VOLUME 19 │ NUMBER 02 │ JANUARY 2020 https://ejournal.worldconference.id/index.php/neutron E-ISSN: 2685-3272 | P-ISSN 1412-0860 Research objectives a. To find out how much the maximum vehicle burden on the perularity of the Hera-Dili road segment. b. To know the relationship of percentage of heavy vehicles with age on bending of the road to Hera. c. To be in the thick of existing coating to influence the increase in the volume of heavy vehicle traffic.

Definition of road Perkerasan
Road perlashing Construction is a layer that is compacted with or without a binder layer above the ground layer on a road path. If the construction is planned to use a binding coating, a common binding layer is used for asphalt or cement coating. With the construction of road piping, the road will be protected from damage mainly caused by water and traffic loads where road perlimation construction will strengthen the carrying capacity of land weakened by water.

Types and functions of bending pliable construction
The seam coating is the construction above the ground that serves to carry the traffic burden by providing a sense of security and comfort. The awarding of a construction layer is intended to allow the tension to occur as a result of loading on the ground soil (subgrade). Road pavement construction is differentiated into two groups according to the bindings used, namely flexible pavements and rigid pavement (rigible). Flexure Pavement (flexibly) made from aggregates and asphalt. Rigit pavement layer is made of aggregate and cement material, consisting of one layer of concrete plate with or without bottom foundation (sub base) between the pavement and ground land (sub grade).
Planning measures thick pliable bending with SNI method-1732-1989 F traffic load based on SNI 1732-1989-F Traffic expenses based on SNI 1732-1989-F are stated to cross an equivalent plan (LER) whose calculation measures are as follows: 3. The initial-equivalent cross-rates (LEP) as a preliminary-to-early-age plan are calculated using this damlied formula:

Index thickness of Pavement (ITP) According to SNI 1732-1989-F.
Thickness of the pavement sought with the help of nomogram, thick index of the pavement (ITP) obtained by connecting DDT and LER, then IPT connected with regional factors (FR) will be obtained the plan thickness index. The thick alignment of each layer is calculated by the following formula:

RESEARCH METHODOLOGY
A methodology is a way or step used to solve a problem by collecting, measuring, studying, and analyzing the data gained by achieving a purpose. To achieve the results of systematic research, organized and can run effectively, efficiently and on target, a design of research, research methods and methods of analysis used. And in the draft research tailored to the purpose of the research, the nature of problems discussed in the completion model.

Types of research
As a first step of research is knowing the type of research that will be done based on the purpose of the research. By observing the known issues in the preparation of this final task, this type of research is relevant to support the analysis process to solve a problem. As a first step in this study, the problems that you want to solve should be clearly identified to avoid the confusion that can arise, as well as the case study that will be done.

Data Source Determination
Determination of data sources consisting of: The data used to support authors in this writing is primary data, secondary data. Primary data is obtained directly on the research site while secondary data is obtained from the construction authorities, in this case the CICO company.

Research procedure
Research is conducted in the following procedures: a. Data collection in the form of primary data and secondary data.

Existing condition of Perkerasan
The road in the analysis of the roads are as follows:

Traffic Volume
To analyze the road then data then Linta is a major factor in analyzing to determine the road class and as well as to determine the thick of the alignment layer. The traffic Data used by the authors in this analysis is obtained from the contractor CICO. The traffic data can be seen in the table 4.1.

Vehicle distribution coefficient (C)
Based on the magnification width and the number of lanes, the road segments of Rua Hera have an 8 m wide road, where the L is < 5.5 m based. Table 2.2, the road section of Rua VOLUME 19 │ NUMBER 02 │ JANUARY 2020 https://ejournal.worldconference.id/index.php/neutron E-ISSN: 2685-3272 | P-ISSN 1412-0860 Hera is 1 2-way line, so it can be determined the value of vehicle distribution coefficient (C) as follows; a. Light vehicle with a total weight of < 5 ton C = 0.50 b. Heavy vehicles with total weight ≥ 5 tons C = 0.50 = 532.382 Cross

Regional Factors Determination (FR)
Regional factors are determined based on the maximum rainfall value, road volume, heavy vehicle and geometric road presentations. Based on the above square parameters, the regional factors are determined: -Maximum rainfall 988.61 mm/yr (Climate II > 900).
-Presenatse vehicles weight 50% (> 30%). Based on the data above information, from table 2.5 obtained the value of regional factors: 1.0

Surface index on early age plan (IP0)
Determining the initial surface index of the plan age based on the structure of the structural performance at the beginning of the plan age according to With the results of the analysis of the heavy vehicle Persenta from 10%-100% and the age of plans 10 and 20 years then we can use for bending, more than 100% of the percentage we can not use to calculate the bending of the pliable because it has passed of bending, to calculate the bending of the flexure, cross-equivalent plans in the limit of 10,000.

A. Conclusion
Based on results of the results of existing discussions can be taken several conclusions as follows: 1. Result of thick analysis of bending ply layer using Bina Marga Degan method for the age plan 10 years using thick existing lapis with the assumption obtained from contractor CICO, Degan (existing) layer of alignment surface 7 cm, base 15 cm, sub base 20 CM Plan age 20 years.
2. If the% of heavy vehicles are blocked then the thick layer surface required will also be larger.
3. When% of vehicles or carrying the burden of existing traffic is heavily estimated, then the layer thickness is not able to meet, because the results of calculations with% of heavy vehicles https://ejournal.worldconference.id/index.php/neutron E-ISSN: 2685-3272 | P-ISSN 1412-0860 increased 10% of the surface thickness is 17.2 cm/This causes the traffic time will be Berkuran, because it is ensured that the road will be damaged as the time of its load ends due to overburden of heavy vehicle

Suggestions
Based on the benefits of research and limitation of problems in CHAPTER I, the authors suggest the following things: 1. For readers who want to develop this research to review traffic volume data to re-analyze the percentage of the weight of 10% to 100%. 2. For planners, executor and owner, should be more thorough in data collection, especially traffic survey data and traffic growth analysis because it is very influential in the value of thick index of the pavement (ITP).